Electro Hardware THN5003M01F16 Brass Thumb Nut 6-32

Product Description

The ELECTRO HARDWARE THN5003M01F16 is a round knurled thumb nut machined from Grade B633 brass with a 6-32 UNC thread. The knurled head profile provides a secure finger grip for tool-free tightening and loosening in applications where frequent adjustment is required. The bright, uncoated finish leaves the brass surface exposed, making it well suited for applications where a non-ferrous, corrosion-resistant fastener is preferred. With a head diameter of 0.375 inches and an overall height of 0.281 inches, this is a compact thumb nut appropriate for close-tolerance panel and enclosure work. Installation requires no tooling beyond proper thread engagement.

This thumb nut is used in light-duty mechanical and electrical assembly applications where hand-adjustable fastening is needed. Typical uses include control panels, instrumentation enclosures, access covers, and small equipment assemblies where the 6-32 UNC thread size is standard. Its brass construction makes it appropriate for environments where steel fasteners may corrode or where non-magnetic hardware is specified. Electricians, HVAC technicians, and equipment assemblers commonly use thumb nuts of this type when securing access panels or terminal covers that require periodic removal.

Key Features

• 6-32 UNC thread for compatibility with standard machine screw applications
• Round knurled head design allows tool-free hand tightening
• Grade B633 brass construction provides corrosion resistance and non-magnetic properties
• Bright, uncoated finish exposes natural brass surface
• Compact profile: 0.375 inch head diameter and 0.281 inch overall height
• Meets QQ-B-626B Comp 22 standard

Compatibility

Designed for use with 6-32 UNC threaded studs, standoffs, and machine screws in panel assemblies, instrumentation enclosures, and light mechanical equipment requiring hand-adjustable brass fasteners.

Installation Notes

De-energize any electrical assembly before removing or installing thumb nuts on live panel covers or terminal enclosures. Thread engagement should be sufficient to prevent loosening under vibration; verify thread condition on the mating stud before installation. No special tools are required, but avoid over-tightening by hand as brass threads can deform under excessive torque. Follow applicable NEC or equipment manufacturer guidelines when working inside electrical enclosures.